A 23.46 carats fancy yellow-brown diamond and diamond ring. Estimate HK$2.5 million - 3.5 million (€300,000 - 420,000). Photo: Bonhams.

The cushion-shaped fancy yellow-brown diamond, weighing 23.46 carats, between pear-shaped diamond shoulders, diamonds approximately 2.00 carats total, ring size 6¼

Accompanied by a GIA report stating that the diamond is natural Fancy Yellow-Brown colour and VVS2 clarity. Report number 5161437975, dated 14 August 2014. 

Bonhams. RARE JEWELS & JADEITE, 30 Nov 2015 17:00 HKT - HONG KONG, ADMIRALTY